package com.sky.config;

import com.sky.interceptor.JwtTokenAdminInterceptor;
import com.sky.interceptor.JwtTokenUserInterceptor;
import com.sky.json.JacksonObjectMapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;

import java.util.List;

/**
 * 配置类，注册web层相关组件
 */
@Configuration
@Slf4j
public class WebMvcConfiguration extends WebMvcConfigurationSupport {

    @Autowired
    private JwtTokenAdminInterceptor jwtTokenAdminInterceptor;
    @Autowired
    private JwtTokenUserInterceptor jwtTokenUserInterceptor;
    /**
     * 注册自定义拦截器
     *
     * @param registry
     */
    protected void addInterceptors(InterceptorRegistry registry) {
        log.info("开始注册自定义拦截器...");
        registry.addInterceptor(jwtTokenAdminInterceptor)
                .addPathPatterns("/admin/**")
                .excludePathPatterns("/admin/employee/login");
        registry.addInterceptor(jwtTokenUserInterceptor).
                addPathPatterns("/user/**")
                .excludePathPatterns("/user/user/login")
                .excludePathPatterns("/user/shop/status")
        ;
    }

    /**
     * 通过knife4j生成接口文档
     * @return
     */
    @Bean
    public Docket docket() {
        log.info("准备生成接口文档");
        ApiInfo apiInfo = new ApiInfoBuilder()
                .title("苍穹外卖项目接口文档")
                .version("2.0")
                .description("苍穹外卖项目接口文档")
                .build();
        Docket docket = new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(apiInfo)
                .select()
                .apis(RequestHandlerSelectors.basePackage("com.sky.controller"))//指定要扫码的类，路径必须要正确
                .paths(PathSelectors.any())
                .build();
        return docket;
    }

    /**
     * 设置静态资源映射
     * 必须设置
     * @param registry
     */
    //进行了方法重写，来源于其父类
    protected void addResourceHandlers(ResourceHandlerRegistry registry) {
        log.info("开始设置静态资源映射");
        registry.addResourceHandler("/doc.html").addResourceLocations("classpath:/META-INF/resources/");//http://localhost:8080/doc.html 访问即可查看生成的文档
        registry.addResourceHandler("/webjars/**").addResourceLocations("classpath:/META-INF/resources/webjars/");
    }

    /**
     * 拓展Spring MVC 框架的消息转换器
     * @param converters
     */
//    protected void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
//        //创建一个消息转换器
//        MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();
//        //需要为消息转换器设置一个对象转换器，可以将Java对象序列化为json数据
//        converter.setJsonPrefix(new JacksonObjectMapper().toString());
//        converters.add(0,converter);//0代表自己的消息转换器在第一位
//    }
}